| 摘要 |
The disclosed heat treatment method involves a first step in which a mist-form coolant is supplied to mist-cool a body to be treated maintained at a prescribed temperature to a target temperature greater than or equal to a first transformation point temperature near which the composition of the body to be treated begins to transform to a prescribed composition; a second step, performed after said first step, in which the body to be treated is maintained for a prescribed time period in a state in which the mist coolant supply has been stopped; and a third step, performed after said second step, in which the body to be treated is cooled to a temperature less than or equal to the first transformation point temperature. By means of the disclosed heat treatment method, the creation of non-uniformities and deformations in the composition of the body to be treated are suppressed. |
